Surely the fact that television, acting, hairdressing etc probably has far more than 7% of that quota, why have you a problem with professional football not attracting gay men? I really fail to see why it's important to know about someone's sexual preferences, or have a problem with them keeping it private if they want to. I don't hear people in the aforementioned traditional gay avenues bleating about heterosexuals being under represented.
You guys can of course focus on what you want, but I'm glad that my club just seem to focus on mainly football issues (even if they're not very good at it). Personally I would keep politics well away from football, but everyone to his own.